During the production of Star Trek: Deep Space Nine, it was intended for Star Trek: The Next Generation character Ro Laren to be assigned to the station. Indeed, it was the character of Ro who inspired the producers to set the new show near Bajor. When Michelle Forbes declined the role, her character was modified and became the basis for Kira Nerys.
Forbes was later approached to reprise the character of Ro on Star Trek: Deep Space Nine, but she declined because she did not want a regular television role at the time; Nana Visitor’s role of Kira Nerys was scripted as a replacement. Forbes was also offered the chance to return on Star Trek: Voyager, but again turned it down.
That would have been interesting. I wonder why she turned it down.
memory alpha :
https://memory-alpha.fandom.com/wiki/Michelle_Forbes
https://memory-alpha.fandom.com/wiki/Kira_Nerys#Conception_and_development_of_the_character
Well, Visitor did a great job!